The PowerPC 604 RISC microprocessor
IEEE Micro
Performance monitoring on the PowerPC 604 microprocessor
ICCD '95 Proceedings of the 1995 International Conference on Computer Design: VLSI in Computers and Processors
Efficient testing of clock regenerator circuits in scan designs
DAC '97 Proceedings of the 34th annual Design Automation Conference
Partial Resolution in Branch Target Buffers
IEEE Transactions on Computers
How Seriously Do You Take Possible-Detect Faults?
ITC '97 Proceedings of the 1997 IEEE International Test Conference
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The PowerPC 604e microprocessor is a lower power, higher performance extension of the PowerPC 604 microprocessor. The 604e doubles the cache size and times the performance of memory accesses compared to the original 604. The 604e has also added hardware support for misaligned data accesses when using little-endian byte ordering. The branch processing microarchitecture of the 604e has been somewhat enhanced. To assist software writers in tuning their code, the 604e has significantly enhanced its hardware performance monitor. These enhancements along with the process migration were done using the Somerset design methodology. This combination of enhancements along with changing to a faster, lower voltage silicon process have made the 604e the highest performance PowerPC microprocessor on the desktop.